On Sat, 28 Jul 2007, Len Brown wrote:
>
> That three-liner will crash ACPI+SMP-HOTPLUG_CPU kernels on resume.
Explain that to me.
There should *be* no resume.
ACPI doesn't suspend/resume on its own, I hope.
It is all done by the top-level suspend/resume code, not by ACPI. ACPI is
a pure helper, and if you've changed that, then I think we need to revert
more than a few lines.
And it's the *top*level* code that selects HOTPLUG_CPU. Through
SUSPEND_SMP (which will select HOTPLUG_CPU) and SOFTWARE_SUSPEND.
This is why it's so *totally* and *utterly* bogus for ACPI to select
features that it has nothign what-so-ever to do with.
In other words: ACPI isn't in the driving seat.
Linus
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